| Statistic | Sainte-Helene-De-Breakeyville | Lévis | Quebec |
| Population | 7,377 | 149,331 | 8,565,732 |
| Population density (sq km) | 262 | 327 | 6 |
| Median age | 38.1 | 43.2 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 41% | 45% | 50% |
| Families w/ kids at home | 51% | 42% | 40% |
| Speak English only | 0.1% | 0.1% | 4.7% |
| Speak French only | 63.9% | 64.5% | 49.5% |
| Data | Percent |
| Black | 0.8% |
| Latin American | 0.4% |
| Arab | 0.0% |
| Multiple Visible Minorities | 0.0% |
| South Asian | 0.0% |
| Data | Percent |
| France | 0.4% |
| Other Western Africa | 0.2% |
| United States | 0.2% |
| Egypt | 0.1% |
| Colombia | 0.1% |
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